EP 2048841 B1 20180214 - Data demodulation using adaptive filtering techniques
Title (en)
Data demodulation using adaptive filtering techniques
Title (de)
Datendemodulation unter Verwendung adaptiver Filterungstechniken
Title (fr)
Démodulation de données en utilisant des techniques adaptives de filtrage
Publication
Application
Priority
US 87122407 A 20071012
Abstract (en)
[origin: EP2048841A2] A communications system receives a modulated signal that carries encoded communications data. An adaptive filter has a plurality of non-adaptive and adaptive filter taps with weighted coefficients and an adaptive gain circuit for updating the adaptive gain of the adaptive filter responsive to a received state of a modem or the type of modulation used by communications system. A demodulator and decoder receive the filtered output signal from the adaptive filter and demodulate and decode the signal to obtain the communications data.
IPC 8 full level
H04L 25/03 (2006.01); H04L 1/00 (2006.01); H04L 25/08 (2006.01); H04L 27/00 (2006.01)
CPC (source: EP US)
H04L 1/0054 (2013.01 - EP US); H04L 25/03038 (2013.01 - EP US); H04L 25/03057 (2013.01 - EP US); H04L 25/03127 (2013.01 - EP US); H04L 25/03146 (2013.01 - EP US); H04L 25/08 (2013.01 - EP US); H04L 27/0008 (2013.01 - EP US); H04L 27/0012 (2013.01 - EP US); H04L 2025/03407 (2013.01 - EP US); H04L 2025/0342 (2013.01 - EP US); H04L 2025/03611 (2013.01 - EP US); H04L 2025/03745 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 2048841 A2 20090415; EP 2048841 A3 20120208; EP 2048841 B1 20180214; IL 194601 A0 20090803; IL 194601 A 20130627; US 8094763 B1 20120110
DOCDB simple family (application)
EP 08017641 A 20081008; IL 19460108 A 20081007; US 87122407 A 20071012